Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hieu lang » chieu sang, hieu quang, nhieu tang
chong van » thong van, hong van, phong van
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay
doanh va » doanh tai, doanh cua, hanh va
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((diep tinh) or (hieu lang)) - doanh ((doanh va) or (doan va)) nhung chong van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((diep tinh) OR (hieu lang)) - doanh ((doanh va) OR (doan va)) nhung chong van thanh tap.
• Adding a wildcard symbol may retrieve word variants: doi ((diep tinh) or (hieu lang)) - doanh ((doanh va) or (doan va)) nhung chong van thanh tap*.